Maximum sustainable yield for marine metapopulation governed by coupled generalised logistic equations

Supriatna A. K., . Maximum sustainable yield for marine metapopulation governed by coupled generalised logistic equations. pp. 201-206. ISSN 1823-8556

Many important renewable natural resources such as commercial marine populations are known to form metapopulations structure. They consist of several inter-connected subpopulations that live in different patches of habitat and have different biological and demographical characteristics. Managing them either as a single well-mixed population or barely as several disconnected populations is clearly inappropriate and may lead to unsustainable utilization of those populations. In this paper the effect of demographic and biological parameters variability on the maximum sustainable yield for the metapopulation is discussed. The traditional maximum sustainable yield that ignores the variability of this parameters is compared with the maximum sustainable yield that considers this variability. Several insights on how to manage the populations in a sustainable manner are derived and could be used as guidance in the exploitation of precious renewable natural resources. The result of the paper shows that the magnitude of the maximum sustainable yield depends critically on the biological parameters with the respect to the corresponding spatial scale. Different places give different value of maximum sustainable yield. In general there is a trade-off among biological parameters in different patches determining whether the stock living in one patch should be harvested more conservatively or less conservatively than the stock living in another patch.

Full text available from: Official URL: http://jssm.umt.edu.my/files/2012/11/13.pdf

Abstract

Many important renewable natural resources such as commercial marine populations are known to form metapopulations structure. They consist of several inter-connected subpopulations that live in different patches of habitat and have different biological and demographical characteristics. Managing them either as a single well-mixed population or barely as several disconnected populations is clearly inappropriate and may lead to unsustainable utilization of those populations. In this paper the effect of demographic and biological parameters variability on the maximum sustainable yield for the metapopulation is discussed. The traditional maximum sustainable yield that ignores the variability of this parameters is compared with the maximum sustainable yield that considers this variability. Several insights on how to manage the populations in a sustainable manner are derived and could be used as guidance in the exploitation of precious renewable natural resources. The result of the paper shows that the magnitude of the maximum sustainable yield depends critically on the biological parameters with the respect to the corresponding spatial scale. Different places give different value of maximum sustainable yield. In general there is a trade-off among biological parameters in different patches determining whether the stock living in one patch should be harvested more conservatively or less conservatively than the stock living in another patch.

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Item Type:	Article
AGROVOC Term:	Population structure
AGROVOC Term:	Habitats
AGROVOC Term:	Demography
AGROVOC Term:	Mathematical models
AGROVOC Term:	Migration
AGROVOC Term:	Harvesting
AGROVOC Term:	Growth rate
AGROVOC Term:	Renewable resources
AGROVOC Term:	Marine resources
AGROVOC Term:	Sustainability
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8722

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